Cheyenne, WY Weather & Growing Conditions
Overnight
29°F
Mostly Clear
Mostly clear, with a low around 29. West northwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 29°F | Mostly Clear | 5 mph WNW | 0% |
| Wednesday | 49°F | Partly Sunny | 5 to 10 mph N | 7% |
| Wednesday Night | 31°F | Mostly Cloudy | 10 mph NNW | 1% |
| Thursday | 57°F | Mostly Sunny | 5 to 10 mph NNW | 0% |
| Thursday Night | 31°F | Partly Cloudy | 5 mph WSW | 1% |
| Friday | 56°F | Mostly Sunny | 5 to 10 mph NW | 6% |
| Friday Night | 31°F | Mostly Clear | 5 to 15 mph WNW | 6% |
| Saturday | 57°F | Sunny | 5 to 15 mph WNW | 2% |
| Saturday Night | 32°F | Mostly Clear | 5 to 10 mph W | 1% |
| Sunday | 65°F | Sunny | 10 mph WSW | 0% |
| Sunday Night | 40°F | Mostly Clear | 10 to 15 mph W | 0% |
| Monday | 64°F | Mostly Sunny | 5 to 15 mph W | 0% |
| Monday Night | 37°F | Partly Cloudy | 5 to 10 mph WSW | 0% |
| Tuesday | 63°F | Mostly Sunny | 10 to 15 mph WNW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cheyenne, WY
Last spring frost
May 14
First fall frost
Oct 1
Growing season
139 days
Hardiness zone
5b
Explore more for Cheyenne, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Cheyenne Wfo, Wy (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.